Describe a stand-alone module.
What will be an ideal response?
A stand-alone module in not part of any network.
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What battery rating is tested at 32°F (0°C)?
A) Battery voltage test B) Cold-cranking amperes (CCA) C) Reserve capacity D) Cranking amperes (CA)
The instructions ona low-pressure switch read "cut-out is cut-in less differential." To set the switch to cut-out at 30 psig:
A) Set the cut-in at 45 psig and the differential at 15 psi. B) Set the cut-in at 45 psig and the differential at 20 psi. C) Set the differential at 45 psi and the cut-in at 15 psig. D) Set both the cut-in psig and differential at 20 psi.
If a wall is 10.50 meters long, how many 8" bricks are needed to build the wall?
What will be an ideal response?
A technician takes the following readings while checking the operation of an electric furnace with 2 heat strips: 220 volts, 36 amps, 70°F return air temperature, and 120°F supply air temperature. What is the airflow through the furnace?
A) = = 540 CFM B) = = 158 CFM C) = = 500 CFM D) (120 - 70 ) × 1.08 × 10 = 540 CFM